Indicates any “forbidden” Status Sensor Signal combination.
Towing vehicle Park indicator
Trailer battery voltage indicators.
Internal, stabilized +15V supply.
Internal, stabilized -15V supply.
Internal, stabilized +5V supply.
Socket for air-temperature probe.
Socket for Infra-Red temperature sensor.
Socket for Load Cell cable.
Sockets “D1” through “D15” for Seismic Detectors.